Science & Mathematics - 4 January 2007

A small rubber ball is attached to a string. A student swings the ball around her head at a steady speed. What happyans to the speed of the ball if the length of the string is shortened??Explain your answer.

2007-01-04 17:42:58 · 5 answers · asked by Sapan P 1 in Physics

I don't mean 9.8 metres squared--I mean, if you could somehow make an object appear out of NOTHING--how long would it take for it's gravity to affect the objects around it?

2007-01-04 17:40:23 · 10 answers · asked by kejjer 5 in Physics

Since accelerating to the speed of light would take infinate energy, and even if a source could gather all the energy in the universe and control it, the object would reach infinate mass right? Something with infinate mass would do what? Destroy whatever was left of the universe that wasn't used to bring the object tolightspeed with it's gravity?

2007-01-04 17:38:17 · 10 answers · asked by Matt ! 3 in Physics

anatomy of the heart

2007-01-04 17:37:46 · 7 answers · asked by charito p 1 in Medicine

2007-01-04 17:36:21 · 8 answers · asked by Austin 1 in Astronomy & Space

I've done but don't remember any more.

2007-01-04 17:35:50 · 6 answers · asked by riz 1 in Chemistry

2007-01-04 17:34:06 · 4 answers · asked by Dexter L 1 in Medicine

was wondering how you would do a simple demography problem that doesn't have to be 100% accurate.

There are 58,133,509 people living in Italy. 54,064,163 are Italians and 4,069,346 ethnic minorities. The total fertility rate for the Italians is 1.15 children per woman in her lifetime. The total fertility rate for the ethnic minorities is 3.6 children born per woman. And each year there are 2.06 ethnic minority migrants per 1,000 of total population. The average life span for the Italians and the ethnic minorities is 79.81 years. The age structure for the population is as follows:

0-14 years 13.8%
15-65 years 66.5%
65 years+ 19.7%

Hopefully my information helped. Do you know how to figure out the precise year in which ethnic minorities will outnumber the Italians?

2007-01-04 17:33:39 · 3 answers · asked by Anonymous in Mathematics

2007-01-04 17:31:57 · 14 answers · asked by Phillip 4 in Astronomy & Space

What is the center of the circle given (x + 4)2 + (y + 3)2 = 64

2007-01-04 17:25:35 · 6 answers · asked by monica 1 in Mathematics

My question is, do adult humans have instincts? I know babies hold their breath underwater etc, but aside from emotional responses such as wanting to protect their children, do humans as animals have any physical instincts at all? Like cats burying feces, bears hunting fish and such as that?

2007-01-04 17:24:39 · 21 answers · asked by Anonymous in Biology

2007-01-04 17:24:21 · 11 answers · asked by Anonymous in Astronomy & Space

Please include: How does increased surface are in these organelles benefit the cell?

2007-01-04 17:23:24 · 5 answers · asked by tylerb013 1 in Biology

2007-01-04 17:20:19 · 4 answers · asked by Alexander G 1 in Earth Sciences & Geology

1. Taylor tosses three coins. The even E is "exactly two coins land heads." What is the probability, P(E), that Taylor tosses exactly two heads?

2. George is watching videos at home. In his videotape library, he has four adventure films and five comedies. If he chooses to watch two different videos, what is the probability that both are comedies?

3. This may not be a direct problem, if not answerable, that is ok. "What is a multiple or a multiple of twenty five." I don't know if that is enough information for anyone to answer that question, if it is that would be great.

2007-01-04 17:15:34 · 7 answers · asked by dallin.harmon 1 in Mathematics

2007-01-04 17:14:47 · 16 answers · asked by riz 1 in Geography

How often do labs occur? every three weeks?. Are labs hard in general? how long does it take to do a lab, couple hours? whats next a lab write up? is that hard and time consuming?

2007-01-04 17:11:32 · 3 answers · asked by avalentin911 2 in Other - Science

What process can i use to cram the most possible boron molecules into a ham? It would be freaking sweet if I could get 3-5 metric tons of boron in there. Thnx

2007-01-04 17:10:57 · 1 answers · asked by GodsOfQED 1 in Mathematics

2007-01-04 17:09:24 · 4 answers · asked by curious 1 in Zoology

2007-01-04 17:08:53 · 12 answers · asked by savannah 1 in Biology

Which equation corresponds to the circle with center (2, -3) and radius = 5?

What is the center of the circle given (x + 4)2 + (y + 3)2 = 64

2007-01-04 17:05:12 · 5 answers · asked by monica 1 in Mathematics

2007-01-04 17:01:38 · 11 answers · asked by KAYLA88 1 in Weather

AB= 9.5
BD= 27
CD= 9.5
AC= 27

2007-01-04 16:59:23 · 7 answers · asked by Anonymous in Mathematics

Knock-Knock?
Who's there?
Hypotenuse?
Hypotenuse who?

2007-01-04 16:57:54 · 7 answers · asked by Garret Tripp 3 in Mathematics

What is the required size force of warriors necessary to infiltrate gandhi's stronghold on pluto? I am looking for the solution that maximizes casualties to my own men. Please minimize with respect to the function f(x, y, z) = min(x, y, z). Thank you

2007-01-04 16:56:57 · 1 answers · asked by GodsOfQED 1 in Mathematics

2007-01-04 16:56:23 · 3 answers · asked by Anonymous in Physics

2007-01-04 16:56:09 · 7 answers · asked by Kristina C 1 in Geography

Has anyone heard about the glaisher that fell off Antartica that was about 43 miles long.So my friend told me about this a couple days ago and since then I've heard ppl talk about it.I also been online looking but cant find it thats why im heard to see if anyone knows.If you find the link send it to me @ bearith911@yahoo.com.thanks peace and love.

2007-01-04 16:53:58 · 5 answers · asked by jameson b 1 in Geography

sides
AB= 42.71 feet,
BC= 58.65 feet,
CD= 43.08 feet,
DA= 63.92 feet
diagonal
AC= 72.67 feet
BD= 76.75 feet

2007-01-04 16:53:56 · 3 answers · asked by Anonymous in Mathematics

2007-01-04 16:52:36 · 3 answers · asked by DaOne 1 in Chemistry